We look at the division of 81220207 by 487 
We want to divide 81220207 by 487.

On to step 1:
When dividing 8 by 487, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 487

Moving on to step 2:
487 goes into 81 0 times with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Include the next digit (2) from the dividend after 81, then repeat: 812 / 487

Advancing to step 3:
487 goes into 812 1 times with a remainder of 325.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 325 after subtracting 487 from 812.
Append the next digit (2) from the dividend to 325 and continue with: 3252 / 487

Advancing to step 4:
487 goes into 3252 6 times with a remainder of 330.
Write down 6 as next digit of the result. 
Result so far: 16.0
Deduct 2922 from 3252 and we're left with 330.
Include the next digit (0) from the dividend after 330, then repeat: 3300 / 487

Moving on to step 5:
The number 487 fits into 3300 6 times, leaving a remainder of 378.
Write down 6 as next digit of the result. 
Result so far: 166.0
Deduct 2922 from 3300 and we're left with 378.
Bring next digit (2) of the dividend behind the 378 and repeat the process: 3782 / 487

On to step 6:
487 goes into 3782 7 times with a remainder of 373.
Write down 7 as next digit of the result. 
Result so far: 1667.0
The remainder is 373 after subtracting 3409 from 3782.
Append the next digit (0) from the dividend to 373 and continue with: 3730 / 487

Moving on to step 7:
The number 487 fits into 3730 7 times, leaving a remainder of 321.
Write down 7 as next digit of the result. 
Result so far: 16677.0
If we subtract 3409 from 3730, we get 321.
Include the next digit (7) from the dividend after 321, then repeat: 3217 / 487

On to step 8:
3217 divided by 487 is 6 with a remainder of 295.
The number 6 becomes the next digit in our result. 
Result so far: 166776.0
The remainder is 295 after subtracting 2922 from 3217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Going ahead to step 9:
2950 divided by 487 is 6 with a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 166776.6
Deduct 2922 from 2950 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 10:
280 divided by 487 is 0 with a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 166776.6
Subtract 0 from 280 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 11:
If we divide 2800 by 487, we get 5 and a remainder of 365.
Write down 5 as next digit of the result. 
Result so far: 166776.605
If we take 2435 away from 2800, we end up with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Step 12:
3650 divided by 487 is 7 with a remainder of 241.
The next digit of our result is 7. 
Result so far: 166776.6057
The remainder is 241 after subtracting 3409 from 3650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Moving on to step 13:
The number 487 fits into 2410 4 times, leaving a remainder of 462.
Write down 4 as next digit of the result. 
Result so far: 166776.60574
Subtracting 1948 from 2410 leaves us with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

On to step 14:
When dividing 4620 by 487, we get 9 with a remainder of 237.
Write down 9 as next digit of the result. 
Result so far: 166776.605749
Subtracting 4383 from 4620 leaves us with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Step 15:
If we divide 2370 by 487, we get 4 and a remainder of 422.
Write down 4 as next digit of the result. 
Result so far: 166776.6057494
Subtracting 1948 from 2370 leaves us with 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Step 16:
If we divide 4220 by 487, we get 8 and a remainder of 324.
Put 8 as the next digit of the answer. 
Result so far: 166776.60574948
Deduct 3896 from 4220 and we're left with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

The final outcome is 166776.60574948, with a leftover of 3.24e-07.